Here is the full list of all 48 NHL 20 achievements worth 1,000 gamerscore. It takes around 80-100 hours to unlock all of the achievements on Xbox One.
Play and score your 1st NHL goal in a regular season game in Be a Pro.
Make your NHL team out of the preseason in Be a Pro.
Win the Stanley Cup® in Be A Pro mode.
Get drafted to an NHL team in Be A pro Mode.
Complete all training camp drills.
Assign a scout to one of the WHL, OHL or QMJHL in Franchise Mode.
Win the Stanley Cup as the 32nd NHL team in Franchise Mode
Hire a head coach of A+ overall rating in Franchise Mode.
Have a coach win the Jack Adams trophy in Franchise Mode.
Unlock a character in Ones Now.
Play and Complete a Ones Now Game.
Complete and win an Online Co-op NHL® Threes Circuit Game.
Collect all the stars in a NHL® Threes Circuit.
Win the final circuit trophy for NHL® Threes Mode.
Choose and equip a customized player introduction animation.
Win a Threes Eliminator Game.
Win a Ones game.
Win a Ones Eliminator Tournament.
Complete a game with 2 traits and a specialty applied to your player.
Open your first Progression Rewards bag
Win a Threes Eliminator Tournament.
Be a member of an EASHL club that has recently won a Division Title and return to the Seasons HUB.
In an World of Chel game, score the game-winning overtime goal.
Score your first goal as a skater or complete and win your first game as a goalie in World of Chel.
Level up your World of Chel pro past Player Level 50.
Score a goal by flipping the puck back against the grain from the backhand toe drag in any mode.
Deflect a shot with the Defensive Skill Stick in any mode.
Score a goal with a between the legs shot in any mode.
Knock off the opposing goalie's bottle from the net by scoring a goal.
Get an assist from a manual saucer pass in any mode.
Score a goal with a manual one timer in any mode.
Have a shutout and win a game as a user-controlled goalie in any mode.
Score a goal as a Mascot in a NHL® Threes game .
Score a goal with a one hand tuck in any mode.
Get an assist with a between the legs pass in any mode.
Win a Squad Battles match in Hockey Ultimate Team.
Complete a Full Set of Daily Objectives in Hockey Ultimate Team.
Complete 10 Sets in Hockey Ultimate Team.
Buy or Sell an item in the auction house in Hockey Ultimate Team.
Apply a Hockey Ultimate Team Customization Item to a Player Item.
Earn a Competitive Season Reward in Hockey Ultimate Team.
Collect an Event Player in Hockey Ultimate Team.
Collect a non-loan Master Icon in Hockey Ultimate Team.
Complete a game with a Team Overall of 85 or higher in Hockey Ultimate Team.
Earn a total 50 Stars in HUT Challenges.
Collect 100 Free Packs in Hockey Ultimate Team.
Complete an Online game in Hockey Ultimate Team.
Activate a Team Synergy in Hockey Ultimate Team.